Home / 111,780.83-154,279.45-64,066.16

Finding the Fourth Proportional to 111,780.83, 154,279.45 and 64,066.16

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Solution

The fourth proportional to 111,780.83, 154,279.45 and 64,066.16 is: 88,423.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,780.83 : 154,279.45 = 64,066.16 : x
  2. Step 2: Convert to fraction form
    111,780.83/154,279.45 = 64,066.16/x
  3. Step 3: Cross multiply
    111,780.83x = 154,279.45 × 64,066.16
  4. Step 4: Simplify right side
    111,780.83x = 9,884,092,394.19
  5. Step 5: Solve for x
    x = 9,884,092,394.19/111,780.83
  6. Step 6: Final answer
    x = 88,423.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.